//初始化函数
export default function(store) {
  let currentW = window.innerWidth; //当前窗口内大小
  // console.log('currentW', currentW)
  let defaultW = 750; //预设宽度分辨率
  let defaultF = 50; //预设文字大小
  let rat = currentW / defaultW; //比率
  let currentF = defaultF * rat; //当前需要的fonsize值

  let parentElement = document.getElementById("html"); //根节点
  let styleString = "" + currentF + "px"; //样式字符串
  console.log("parentElement", parentElement);
  parentElement.style.overflowY = "auto";

  if (currentW > 319) {
    //窗口大于320
    //窗口调整大小
    parentElement.style.overflowX = "hidden";
    parentElement.style.fontSize = styleString;
    //console.log(store.state)
    store.commit("setfonsize", currentF);
  } else {
    parentElement.style.overflowX = "auto";
  }
}
